🦠💉 Five landmark studies shed new light on influenza vaccines!

🇪🇸 GALFLU (Spain, NEJM): High-dose vaccine cut influenza/pneumonia hospitalizations.

🇩🇰 DANFLU-2 (Denmark, NEJM & JAMA): Neutral primary outcome but signals for fewer CV & HF hospitalizations.

🇨🇳 PANDA II (China, Lancet): In-hospital vaccination lowered mortality & readmissions in acute HF.

📊 JAMA Editorial by Robert Califf: Calls for a true learning health system.

✨ Together, they show small gains per patient can yield huge public health wins!